Area Status: Closed
This area is Closed

Explore the underground world of a lava tube. The self-guided trail is approximately 1/3 mile long and the cave is completely dark, so don't forget to bring a flashlight.

The floor is rough and jagged so wear sturdy shoes. A light jacket will ward off the chill as the cave remains a cool 46 degrees F.  Neither hardhats nor crawling is required! 

Pets are not allowed.

At a Glance

Current Conditions: Subway Cave Day Use Area is closed for the season. Come back in the spring, explore the self guided lava tube, and enjoy a picnic.  Guided tours are available Saturdays at 11:00 am through Labor Day.
Operational Hours: Open late April-November (weather permitting).
Rentals & Guides: Free guided tours are offered each weekend from mid-June - Labor Day.
Area Amenities: Interpretive Site,Picnic tables,Toilets,Drinking water,Parking
Fees Donations welcome
Usage: Medium-Heavy
Best Season: Summer
Busiest Season: Summer
Closest Towns: Trailhead is located 1/4 mile north of the junction of State Routes 44 and 89. The community of Old Station is located 1/2 mile south of the trailhead. 
Water: Yes
Restroom: Vault toilets
Information Center: In addition to the restrooms and water, picnic tables are available for use making this trail an excellent place to stop for a picnic lunch.

General Information


Located on Highway 89 approximately 1/4 mile north of the Highway 44/89 junction in Old Station.

General Notes:

Rough surfaces and cool temperatures exist in the tube, sturdy shoes and jackets are recommended.


Plenty of parking, tight turn around for RVs and buses.



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Other Activities

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Outdoor Learning

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Picnic tables
Interpretive Site
Drinking water April through October
Fire Danger Level: Low
Areas & Activities


  Area/Length : 
  1/3 mile